Unable to change Appcompat theme from light to holo dark

Question

I am trying to change the theme of my app completely, This is what I modified & tried :

styles.xml in values folder is

Answer 1

As tyczj pointed, you need to use Theme.AppCompat as a parent for your themes if your app uses appcompat_v7. Theme.AppCompat is visually the same as Theme.Holo (dark).

See the article about styling the ActionBar on the Android documentation for more information.